Abstract

This study aims to investigate flow and spray characteristics in twin-fluid atomization nozzles generating a supersonic annular gas jet, and the effect of shock wave interactions on liquid drops. Two different types of atomization nozzles were considered: sonic and converging-diverging nozzles. The annular gas jet behavior was identified by flow visualization and suction pressure measurements. Schlieren photographs shows that changes in atomizing gas pressure alter the net-shape wave patterns and the lengths of radially impinging stagnation point (recirculating toroid) and supersonic flow region. Suction pressures downstream of the nozzle orifice were measured to see the presence of shock cell and the influence of aspirating effect on atomization performance. Also examined were the fragmentation phenomena of liquid by still micro-photography using a spark light source. The drop size was measured by a light scattering method, and its radial distribution is obtained by use of a tomographical transformation. The atomization performances were compared for various atomizing conditions.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.